Chapter 4: Troubleshooting
Troubleshooting Tables
Service Manual
4-27
4.4.3 Display – LCD and Backlights
4.4.3.1 White Display, Striped Display, or Color Shift
4.4.3.2 Distorted Display: Test or Random Pattern
4.4.3.3 Dim or Non-uniform Light
8.
Using DMM, back-probe J26 pins 1-3 or 2-4.
Depending on dimmer pot setting, voltage range
will be 8 to 12 VAC.
9.
If no lamp voltage, replace transformer assembly.
Possible Causes
Step
Troubleshooting Procedure
Comments
Possible Causes
Step
Troubleshooting Procedure
Comments
Poor LCD cable
connection
1.
Check LCD cable connection at Control PCA (J1).
LCD Cable PN:
6600-1412-600
2.
If OK, check the LCD cable connection at LCD
module.
3.
If OK, replace LCD module.
Possible Causes
Step
Troubleshooting Procedure
Comments
Main application
software not loaded
1.
Reload main application code (MAP software).
Possible Causes
Step
Troubleshooting Procedure
Comments
Bad LCD backlight
1.
The backlight may not be connected to the LED
driver board mounted on the Control Board. Check
to make sure connections are mated correctly as
well as any bent pins.
2.
If OK, disconnect the LCD cable at the Control PCA.
Turn on unit and examine for nonuniform lighting.
Содержание PANDA
Страница 4: ...RH 2 Service Manual...
Страница 12: ...ii Service Manual About this Manual User Responsibility...
Страница 38: ...Chapter 1 Functional Description System Functions 1 14 Service Manual FIGURE 1 8 Power Failure...
Страница 44: ...Chapter 1 Functional Description System Functions 1 20 Service Manual FIGURE 1 14 Manual Mode Heat Control...
Страница 60: ...Chapter 2 Installation Maintenance and Checkout Scale Checkout Procedures 2 8 Service Manual...
Страница 62: ...Chapter 3 Calibration Scale Calibration Bedded Models Only 3 2 Service Manual...
Страница 172: ...Chapter 6 Illustrated Parts Wiring Diagrams 6 40 Service Manual...
Страница 180: ...Appendix A Specifications SpO2 Specifications A 8 Service Manual...
Страница 196: ...Appendix D Troubleshooting Service Mode Application Software 1 0 9 and Earlier D 8 Service Manual...